Today, gasoline use is legal in many countries, however it carries certain health hazards -- a number of unwanted by-products from the vapors created when you burn gas and also from just evaporation has been proven to cause cancer. With nearly 1/2 million cancer deaths per year, why don't we do something about this nasty ole gasoline?

Hello Silverstreaker;I just mentioned that primarily as a warning that one shouldn't be doing this at home because of the potential health hazard.Anyone contemplating doing this must check for the legal status himself.As well as being aware of the danger.

I suggested it as a light hearted suggestion to the ethanol crowd, that they could take advantage of the winter cold in the mid-west.

Today, freeze distillation of alcoholic beverages is illegal in many countries, as it carries certain health hazards -- a number of unwanted by-products of fermentation (which are mostly removed by heat distillation) tend to accumulate in freeze-distilled beverages to an unhealthy level.

"Are modifications to vehicles needed to run hydrous ethanol? What are the benefits of anhydrous?"

Basically, the same FFVs are used in Brazil as here. There's no benefit to using anhydrous ethanol. The ATF requires US ethanol be denatured, so people will not drink it. This means getting most of the water out to denature the ethanol with gasoline. It's an expensive process.

soylentgrain has a good point. In Brazil they do not remove the last bit of water which leaves them with about 96% ethanol. Folks at the ethanol plants tell me if they could do this here the price of ethanol would drop 25-30 cents per gallon.

borsht says "they could use freeze distillation as part of the process.this is illegal for beverages, since the process doesn't have the selectivity of thermal distillation"Please site the law that makes this illegal.

Possibly with all the cold in the mid-west they could use freeze distillation as part of the process.this is illegal for beverages, since the process doesn't have the selectivity of thermal distillation.

As far as water fractions, hydrous ethanol is used in Brazil. While it is a distilled product, less energy is used to make it and, in all likelihood, it would be a more efficient fuel than the anhydrous for we use in the US.